Let's look then at the Turkish Lira, which had a massive fall because of crazy monetary policy and other problems. It now stands at 0.057 USD, compared to the most typical value of 0.11 USD in 2021 - it has retained ~52% of its value. In contrast, BTC stands at 20k USD, compared to its mean value in 2021 of 47k USD - it only retained 42% of that value.
So, someone who had put all of their savings in Turkish Lira would be better off today than someone who did so in BTC (and if we're comparing to the peaks for each year, it gets even worse - they would be left with only 39% for TRY, 29% for BTC).
Are there even worse currencies than the TRY? Probably. But the vast majority are actually doing much better, and even the TRY beat BTC as a store of value.
So, someone who had put all of their savings in Turkish Lira would be better off today than someone who did so in BTC (and if we're comparing to the peaks for each year, it gets even worse - they would be left with only 39% for TRY, 29% for BTC).
Are there even worse currencies than the TRY? Probably. But the vast majority are actually doing much better, and even the TRY beat BTC as a store of value.